This method returns a nested array of cell data, with each cell indexed by its row and column coordinates.

该方法将返回嵌套的单元格数据数组，其中每个单元格使用它的行坐标和列坐标进行索引。

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The for loop in Listing 7 translates their filename vagaries into simple X, Y (column and row) coordinates, and stores their values in the % vals hash.

清单7中的for循环将它们奇怪的文件名转换成简单的X, Y(列和行)坐标，并将它们的值存储在% vals散列中。

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The update trigger is more complicated: if the update causes an exception, you have to delete the existing feature row, just as for null coordinates.

更新触发器比较复杂：如果更新导致异常，那么必须删除现有的特性行，就像处理null坐标一样。

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